Abstract
Polarization information is valuable for image de-scattering in turbid media. Previous polarimetric image de-scattering methods tend to employ the illumination with a fixed polarization state, while the effect of the polarization state of active illumination on the target is less considered. In this paper, a computational polarization differential imaging de-scattering method based on 3 × 3 Mueller matrix and active illumination modulation is proposed. We extend the influence of active illumination polarization state on the imaging quality, and we realize a comprehensive de-scattering method based on both the input (active illumination modulation when imaging) and output (polarization processing after imaging) dimensions of the system by combining the traditional polarization differential method and the active polarization illumination filtering. Theoretical analysis and experimental results demonstrate the superiority of active illumination modulation and verify that our method can significantly improve the global quality of de-scattered images. In addition, the proposed method can achieve a better performance in image detail recovery for target detection and recognition even in strong scattering media. • An improved polarization differential imaging method for underwater imaging is proposed. • The active illumination modulation is involved for improving the imaging quality. • Our method has a better performance in detail preservation and image recovery. • Our method is effective for both highly and low polarized objects.
Published Version
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